FROM golang:1.26-alpine AS builder

WORKDIR /app
ENV GOTOOLCHAIN=auto \
    GOPROXY=https://goproxy.cn,direct \
    GOSUMDB=sum.golang.google.cn \
    GOMEMLIMIT=512MiB
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 \
    GOOS=linux \
    go build \
    -p 1 \
    -o /server \
    ./cmd/server

FROM alpine:3.20

RUN apk add --no-cache ca-certificates tzdata
COPY --from=builder /server /usr/local/bin/server
COPY config/config.yaml /config/config.yaml

EXPOSE 8080
ENTRYPOINT ["server"]